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This paper proposes an improved equivalent circuit model for the composite right/left-handed transmission line (CRLH TL) and Dual-CRLH (DCRLH) TL unit cells. A pseudo-inverse technique is first implemented to extract the primary equivalent circuit. By using the conventional filter synthesis technique, the retrieval primary equivalent circuit is further transformed to a typical band-pass/band-stop...
This paper investigates about the main properties of metamaterials and proposes an application of these structures as high band pass filter in the frequency range 0 - 10 Ghz. The equivalent circuit is extracted: some electrical parameters are carried out by the finite element method, other by the analytical solution and other by the finite difference method. The ohmic losses are neglected and the...
Left handed transmission lines have anti-parallel phase and group velocities, unlike right handed transmission lines with positive phase and group velocities. The propagation characteristics show that backward wave propagation occurs in a Left handed transmission line. A composite Right Left Handed (CRLH) transmission line can be constructed using lumped elements or split rings. Using microstrip coupled...
This paper investigates the influence of the grid density, i.e. the amount of nonnegligible wavelet coefficients (Haar) used to represent the electromagnetic field, on integral parameters, like scattering parameters. A band-stop filter based on an unbalanced composite right/left-handed transmission line (CRLH-TL) is the specific example evaluated. The TL-based metamaterial (MTM) has been simulated...
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